<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <title>layout 管理系统大布局 - Layui</title>
    <link rel="stylesheet" href="//unpkg.com/layui@2.6.8/dist/css/layui.css" />
    <!-- 引入 layui.js -->
    <script src="//unpkg.com/layui@2.6.8/dist/layui.js"></script>
</head>
<body>
    <div class="layui-layout layui-layout-admin">
        <div class="layui-header">
            <div class="layui-logo layui-hide-xs layui-bg-black">我的后台</div>
            <!-- 头部区域（可配合layui 已有的水平导航） -->
            <!-- <ul class="layui-nav layui-layout-left"> -->
                <!-- 移动端显示 -->
                <!-- <li class="layui-nav-item layui-show-xs-inline-block layui-hide-sm" lay-header-event="menuLeft">
                    <i class="layui-icon layui-icon-spread-left"></i>
                </li>

                <li class="layui-nav-item layui-hide-xs"><a href="">nav 1</a></li>
                <li class="layui-nav-item layui-hide-xs"><a href="">nav 2</a></li>
                <li class="layui-nav-item layui-hide-xs"><a href="">nav 3</a></li>
                <li class="layui-nav-item">
                    <a href="javascript:;">nav groups</a>
                    <dl class="layui-nav-child">
                        <dd><a href="">menu 11</a></dd>
                        <dd><a href="">menu 22</a></dd>
                        <dd><a href="">menu 33</a></dd>
                    </dl>
                </li> -->
            <!-- </ul> -->
            <ul class="layui-nav layui-layout-right">
                <li class="layui-nav-item layui-hide layui-show-md-inline-block">
                    <a href="javascript:;">
                        <img src="//tva1.sinaimg.cn/crop.0.0.118.118.180/5db11ff4gw1e77d3nqrv8j203b03cweg.jpg"
                            class="layui-nav-img">
                        <span id="username">未登录</span>
                    </a>
                    <dl class="layui-nav-child">
                        <dd><a href="">用户信息</a></dd>
                        <dd><a href="" id="logout">退出登录</a></dd>
                    </dl>
                </li>
                <!-- <li class="layui-nav-item" lay-header-event="menuRight" lay-unselect>
                    <a href="javascript:;">
                        <i class="layui-icon layui-icon-more-vertical"></i>
                    </a>
                </li> -->
            </ul>
        </div>

        <div class="layui-side layui-bg-black">
            <div class="layui-side-scroll">
                <!-- 左侧导航区域（可配合layui已有的垂直导航） -->
                <ul id="left-menu-my" class="layui-nav layui-nav-tree" lay-filter="test">
                    <li class="layui-nav-item" lay-header-event="menuLeft" data-url="home.html">
                        <a href="javascript:;">后台主页</a>
                    </li>
                    <li class="layui-nav-item layui-nav-itemed">
                        <a class="" href="javascript:;">用户管理</a>
                        <dl class="layui-nav-child">
                            <dd><a href="javascript:;">添加用户</a></dd>
                            <dd lay-header-event="menuLeft" data-url="index.html">
                                <a href="javascript:;">用户列表</a>
                            </dd>
                        </dl>
                    </li>
                    <li class="layui-nav-item">
                        <a href="javascript:;">商品管理</a>
                        <dl class="layui-nav-child">
                            <dd><a href="javascript:;">添加商品</a></dd>
                            <dd><a href="javascript:;">商品列表</a></dd>
                        </dl>
                    </li>
                    <li class="layui-nav-item layui-nav-itemed">
                        <a class="" href="javascript:;">成绩管理</a>
                        <dl class="layui-nav-child">
                            <dd><a href="javascript:;">11</a></dd>
                            <dd lay-header-event="menuLeft" data-url="个人成绩.html">
                                <a href="javascript:;">图表</a>
                            </dd>
                        </dl>
                    </li>
                    <li class="layui-nav-item layui-nav-itemed">
                        <a class="" href="javascript:;">轮播图</a>
                        <dl class="layui-nav-child">
                            <dd><a href="javascript:;">11</a></dd>
                            <dd lay-header-event="menuLeft" data-url="首页轮播效果同步.html">
                                <a href="javascript:;">首页轮播</a>
                            </dd>
                        </dl>
                    </li>

                    <li class="layui-nav-item"><a href="">the links</a></li>
                </ul>
            </div>
        </div>

        <div class="layui-body">
            <!-- 内容主体区域 -->
            <iframe  style="width: 100%; height: 100%" src="home.html" frameborder="0"></iframe>
        </div>

        <div class="layui-footer">
            <!-- 底部固定区域 -->
            底部固定区域
        </div>
    </div>
    <script>
        //JS 
        layui.use(['element', 'layer', 'util'], function () {
            var element = layui.element
                , layer = layui.layer
                , util = layui.util
                , $ = layui.$, //leyui的jquery
                UserInfo = null

            //头部事件
            util.event('lay-header-event', {
                //左侧菜单事件
                menuLeft: function (othis) {
                    // layer.msg('展开左侧菜单的操作', { icon: 0 });
                    console.log(othis);
                    let url = $(othis).attr('data-url')
                    $('iframe').attr('src', url)
                }, 

                // menuRight: function () {
                //     layer.open({
                //         type: 1
                //         , content: '<div style="padding: 15px;">处理右侧面板的操作</div>'
                //         , area: ['260px', '100%']
                //         , offset: 'rt' //右上角
                //         , anim: 5
                //         , shadeClose: true
                //     });
                // }

            });
            $(function () {
                checkLogin();
                showHome()
                $('#logout').click(function () {
                    localStorage.clear()
                    chcekLogin()
                })
            })
            function showHome () {
                $('#left-menu-my li').eq(0).click()
            }
            function checkLogin(){
                let data = localStorage.userInfo
                if(data){
                    data = JSON.parse(data)
                    $('#username').text(data.username)
                } else {
                    location.href = '注册登录页面.html'
                }
            }
        });
    </script>
</body>

</html>